Improvement in railroad-car ventilators



UNITED STATES IMPROVEMENT IN RAILROAD-CAR `v'ENTILATORS.

speeifieeeen forming pe'rtvef Lettere Patent Ne. 119,349, datedseptember 26, 1871.

To all whom 'it may concern:

Be it known that we, GEORGE B. HALL and JOSEPH SHAFFER, of Kansas City,in the county ofJackson and State of Missouri, have invented certain newand useful improvements in means for preventing the entrance of dust,cinders, Snc., into railway cars; and we do hereby declare that thefollowing is a full, clear, and

` exact description of the same, reference being 1 the auxiliary doublewindowsturned on its hinges at right angles to the side of the cartoexclude dust and cinders." Fig. 3 represents a horizontal section of thesame, the parts occupying the position described in the precedingligure. Fig. 4 represents a side elevation of the auxiliaryhinged doublewindow removed from its casing in the side of the car.

My invention relates to means for excluding dust, cinders, &c., from arailway car while in motion 5 and it consists in the arrangement withina recess in the side of the car-body, between the windows with which acar is ordinarilyprovided, of a double-sliding hingedwindow, of suchheight in relation to the main window as that when drawn from its casingit will support said main window and admit of one of its parts beingturned at right angles to the side of the car to act as a bar to theentrance of dust, cinders, &c., without interfering with the freeventilation of the car, as will be hereinafter described.

In the accompanying drawing, A represents a portion of a railway-carbody, showing also the ordinary window B arranged to move vertically upand down within its frame. Within a recess, C, made in the side of thecar between the windows B, is arranged a double-hinged window, D D',which is provided on the under side of each of its parts withanti-friction rollers a, to enable it to be drawn easily from andreturned within its casing, for a purpose to be hereafter described.Each portion D D of said double window is provided on yits sidecontiguous to the main windows B with spring-pulls or knobs, Z1, which,when said window B is lowered in its frame, are folded within theirsockets, and when the said main window is raised are thrust out by theaction of i their springs beyond the casing ofthe main window, in orderthat the double-Ventilating window may be drawn out in either directionfrom its casing as the movement of the cars may require. When it isdesired to admit into the car a current of air for its ventilation., andat the same time exclude the dust, cinders, Ste., which are. so great anannoyance to passengers, the main window B is elevated to a height thatwill allow the double window D Dl to `be drawn from its casingunderneath it, and to such distance as that only one-half, D, of saiddouble window may be brought into action. The latter is then turned onits hinges to a right angle with the side of the car and the main windowB lowered on the hinges connecting this portion with its fellow D. Bythis arrangement it will be seen that, while the main window is held inits elevated position, the portion D of the double window is bracedagainst the action of the wind and the current of air produced by theforward movement of the car, by that portion of its frame nearest itshinges abutting against the frame of the main window B, the distancebetween the two portions of the double Window being such as will justadmit the main window to rest upon its hinges. The parts being inwthisposition do not interfere with the thorough ventilation of the car,while the dust, cinders, Sto., striking against the protruding portionof the double window are caused by the current of air produced by suchprotrusion to fall below the level of the open window B, thus insuringcomfort to passengers by the entrance of fresh air, while thoseannoyances to which they are subjected are eifectually excluded. Thesides of a railway car being always constructed of an inner and an outerwall, leaving an unoccupied recess between the ordinary windows withwhich it is provided, render the adaptation of our invention to allrailway cars a simple matter and one comparatively inexpensive, whileits usefulness and efficiency is undoubted. When it isdesired to closethe main `window B it is raised so as to clear the double windows D D',the protruding portion of the latter is brought in a straight line withits fellow and is pushed within its casing, when the said mein Window isfree to be lowered in its 2. The double Window D D provided with frame.spring-knobs or pulls b, operating as and for the Having described ourinvention, We clailnpurpose herein described. l. The double Windowr DD', arranged to be In testimony whereof We have hereunto signed movedWithin and from its casing C to forln a our names. support for the matinWindow B of a railway car, GEORGE B. HALL. and by turning 011e of theparts of said double JOSEPH SHAFFER. window at right angles to the sideof the car to prevent the entrance of dust, cinders, &c.,W11ileWitnesses: the ventilation of said cnr is uninterrupted, as THOMAS R.SANDFORD, herein shown and described. W. H. SUTTON.

